10. The product of the sum of 4 and 5, and the difference of 20 and 12 are divisible of what number? A. 2 C. 10 B. 5 D. 11​

geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

no solution

step-by-step explanation:

there is not enough information in the problem to solve.

a

step-by-step explanation: